Automatische Kalibrierung von Multiprojektorsystemen

Projection systems are widely used in many application areas of industry, research & development, art & culture or teaching. Single channel systems are not adequate for complex use cases. For increasing the brightness or resolution, for displaying three-dimensional stereoscopic content, for obtaining redundancy or for guaranteeing a focused projection on a three-dimensional projection surface, multi channel systems have to be used. However, without adaptations the partial projections of such a system do not result in a homogenous projection. Visible artifacts due to pixel offsets, brightness differences, and deviations from the geometry of the projection surface may occur. In order to eliminate such effects a multi channel system has to be pixel-perfectly calibrated. In most cases this calibration is a non-trivial task which has to be solved either with manual, semiautomatic or fully automatic algorithms. This thesis describes three novel, robust, automatic, camera-based algorithms for fast and exact calibration of multi projector systems. These three algorithms solve the mentioned problems for regular formed two- and three-dimensional as well as for arbitrarily formed projection surfaces